Sample tube rack



FIG. 1 is a perspective view of sample tube rack showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear side elevational view;

FIG. 4 is a right elevational view;

FIG. 5 is a left side elevational view;

FIG. 6 is a top plan view;

FIG. 7 is a bottom plan view; and,

FIG. 8 is an exploded view.

The broken lines in the drawings depict parts of the sample tube rackthat form no part of the claimed design.

CLAIM The ornamental design for sample tube rack, as shown anddescribed.